Scoop attachment for industrial trucks



Sept. 20, 1949. 1.. 1.. QUALES ET AL 2,482,692 SCOOP ATTACHMENT FOR INDUSTRIAL TRUCKS I Filed Jan. 19, 1946 I INVENTORS L.LOYD L. QUALES &

JOHN F HASLER ATTORNEY Patented Sept. 20, 1949 by i i seeeremB i TRUCKL Lloyd; L. Quales, Detroit, and John F. Hasler,

" assignors to Vickers Inoofi martian- Mich igan;

matei ia ls team than to arrelevated lpositibn;

Theang ntia m c-sa s: tl'iis"'ckiaraeterscreeds' q eta material; hand ruckwithin a ver erval bf' time. z: 1

A f ther pbjeet of thgpropcsedd loaded buket then-moved by the truck to its unloading spot Another obj'ect ef my'inventionis to provide a we; casket de i n meanin s; 9.17- attachin the bucket to the truck. The -d vides a structure wherebg the to its normaf iiorizorital ioa a will swing :isasi e Figure means-l ge Fi ure side e evation Qiithfi'. huckentiited to its unloadingqnoit109- Figure 4 is artoyplan viw of the bucket.

Referring to Figure 1, theaztruick I0 is pmvided':

axvertical. lifts column l2r'for. elevatingfrbr lowering the arms or forks I4. The materials bucket I6 is fastened to the forks [4 by a special frame 18. Frame I8 is constructed with engaging members and 22 provided with openings 24 for receiving the fork arms l4.

The bucket l6 and its holding frame l8 are tes- 1 to material handling: iil i l W TQV QQd.

# 1 lwlitiularlv ceneerne'df lll'k material suchagck-ing up dingiaotition when emptxganu yet will tip up on tilt to its unloading! i l6 ispivoted =-to 'the-holding frame-- memberi-Zil 10 pm 3ll.* --Tli' lpivet point (SW-del slightli' its thcenter o" lBif 'lffie qliject or said pwoif forward of th bucket? center? Pg'i'avit turn of 'tlr v rent I normal-horizontal iaositioii, after uiiladin Another characteristic of the bucket I6 stljiefact that its' greate "rti on of volumefis forward ef tl-iepivmf 39 n feature fer-ward iitisi tion 32 6f? tlie'leucket Fee's enlarged as compared with therma niiig per to-thleft emu enter Figure- B',- aresme emne eiilar g ed pera Mon--32 to th'e right ofifivht 30-theg-reater weightor material or" loam-tenders: an thebucket lfi' a clockwise ur eauen rial load.

when the bucket I6 is tilted -to a sufficient angle fbi tfie -lo'ad df material toslid'e out-' of the bl'ieke a tiltetop bar -iklimits furtheretravel; The tilt stop mechanism mcmdes arr element 36- attached tofithe bucket slot fle' infwh la a-cr es cad-40, fastened on'theend-of bar fl"; rd'es. Bar-"34 slides inthe collar r'ilischarging the mate the-tilt "stop" inech'ariism is'. illu'stratedin Figure 3;

designed so thatthe scoop will rest on the ground a 26 is adapted to catch on the fork structure a and be held in engagement by means of spring 28.

'Ass'oon1:as' th'e material: load" is dumped; "the empty bucket 16- willireturmto its horizontal= pbs'i tion gravitational forc as describedabove. The tilt: latch T 48 nrciuniiett on the holdingframe I8? is: adapte'drto' engagerbwi'the the-catch.- 50; on.- 7 bucketiwandiholdi thebucketiirritsnormal.loadt:

ing position as illustrated in Figure 1. In order.- toreIeasaJatchi 48: the: operati'ngya-rm 52 may .be Shiftedktfl the: lefta-fs: A' cable' 54. attachedito; saide operatingsarm iizextends; to. the dri-fvers: or Opera.

ators' -.'seatr positions: whereby: the operator. can;

aterial: load by" merely-mulling. on

In; openationi with thescoop mechanismsetas; illustrated in Figure 1, the operator would drive the truck forward until the nose 56 of the bucket I6 is forced into the dirt or material pile. When the bucket l6 has been loaded, the fork arms I4 are then raised on the truck column l2 until clear of the pile and at a suitable elevation for transporting to the unloading point.

When the load has been transferred to its destination, the operator merely pulls on the cable 54 to release the latch 48 from the bucket catch 50. Due to the fact that the larger portion of the load in the bucket I6 is forward of a the pivots 30, the bucket I6 will be tilted or upset to the position shown in Figure 3 at which angle the material load will slide out of the bucket. Since the center of gravity of the bucket is to the left of pivot 30, as soon as the load is dumped, the bucket l6 will return by its own weight to its normal horizontal position where it is again held by latch 48 and catch 50 ready for loading.

While the form of embodiment of the invention as herein disclosed constitutes a preferred form, it is to be understood that other'forms might 'be adopted, all coming within the scope of the claims which follow. 7

What is claimed is as follows: 1. A dirt scoop for a material handling truck equipped with forward extended lift forks said dirt scoop including a holding frame detachably to the forks, a materials bucket pivoted to said holding frame adjacent the ends of the forks, said bucket being approximately twice the length of the lift forks and that portion of said bucket forward of the pivots being of a larger capacity than the rear portion, and a latch adapted to hold the materials bucket in a horizontal position until released.

. 5. A dirt scoop for a material handling truck mounted on said lift forks, a materials bucket pivoted to said holding frame adjacent the ends of the forks at a point on the bucket slightly forward of its center of gravity whereby the empty bucket will return to its loading position by gravity and that portion of the bucket forward of the pivots being of a larger capacity than the rear portion whereby the loaded bucket will dump its load by gravity, and a latch adapted to hold the materials bucket in a horizontal position until released.

2. A dirt scoop for a material handling truck equipped with forward extended lift forks said dirt scoop including a holding frame detachably mounted on said lift forks, a materials bucket pivoted to said holding frame adjacent the ends of the forks at a point on the bucket slightly forward of its center of gravity, whereby the empty bucket will return to its horizontal loading position by gravity, said bucket being approximately twice the length of the lift forks and that portion of said bucket forward of the pivots bein of a larger capacity than the rear portion whereby the loaded bucket will dump its load by gravity, and a latch adapted to hold the materials bucket in a horizontal position until released.

3. A dirt scoop for a material handling truck equipped with forward extended lift forks said dirt scoop including a holding frame, means for detachably mounting said frame on the lift forks including openings in said frame adapted to receive said forks as the truck is moved forward, a frame latch for fastening the holding frame to the forks, a materials bucket pivoted to said holding frame adjacent the ends of the forks at a. point on the bucket slightly forward of its center of gravity, and a latch adapted to hold the mate'- rials bucket in a horizontal position until released.

4. A dirt scoop for a material handling truck equipped with forward extended lift forks said dirt scoop including a holding frame, means for detachably mounting said frame on the lift forks including openings in said frame adapted to receive said forks as the truck is moved forward, a frame latch for fastening the holding frame equipped with forward extending lift forks, said dirt scoop including a holding frame, openings in-said holding frame adapted to receive the lift forks, a materials bucket pivoted to the holding frame adjacent the ends of the lift forks and at a point on the bucket slightly forward of its center of gravity whereby the empty bucket will return to its horizontal loading position by gravity, said bucket being approximately twice the length of the lift forks and that portion of said bucket forward of the pivots being of a larger capacity than the rear portion, whereby the loaded-bucket will dump its load by gravity, a resilient stop device formed as an integral part of the bucket and holding frame for limiting the unloading angle of the bucket comprising in combination, a tilt stop element fastened to said bucket, a longitudinal slot in said element, a cross head reciprocably mounted in said slot, a collar pivoted to the holding frame, a bar fastened at one end to said cross head and slidably journalled in said collar, a nut on the collar end of said bar, a compression spring mounted on the bar between the nut and the collar, a frame latch for fastening the holding frame to the forks, a bucket latch for retaining the bucket horizontal on the forks, and means for releasing said bucket catch and dumping the bucket.

LLOYD L. QUALES.

JOHN F. HASLER.

REFERENCES CITED The following references are of record in the file of this patent:

France Jan. 13,1936 

